Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the onset of September, Stewartville's climate undergoes a slight change as the average high-temperature moves from a warm 76.6°F (24.8°C) in August to an agreeable 70.7°F (21.5°C). In Stewartville, September nights cool down to an average of 52°F (11.1°C).Humidity
In September, the average relative humidity in Stewartville is 79%.Rainfall
In Stewartville, in September, during 9.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, in Stewartville, Minnesota, there are 109.7 rainfall days, and 16.57" (421mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Stewartville.Daylight
In September, the average length of the day in Stewartville is 12h and 29min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:52 pm CDT.
Sunshine
The average sunshine in September in Stewartville is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Stewartville in September?
What is the average humidity in September in Stewartville?
How many days does it rain in September in Stewartville?
When it does not snow in Stewartville?
Does it snow in Stewartville in September?
How many hours of daylight does Stewartville have in September?
When are sunrise and sunset in September in Stewartville?
How long on average sun shines in September in Stewartville?
How high is the UV index in September in Stewartville?
Average temperature in September
Stewartville, MN
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in September
Stewartville, MN
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Stewartville, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Stewartville, MN
- Average humidity in September: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Stewartville, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
Stewartville, MN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Stewartville, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stewartville, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stewartville, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Stewartville, MN
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in September
Stewartville, MN
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Stewartville, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Stewartville, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Stewartville, Minnesota, USA
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